Tension device for warp-beams.



PATENTED AUG. 23 1904.

G. KELLER. N v TENSION DEVICE FOR WARP 12mm.

APPLIOATION FILED 001214, 1903.

NO MODEL.

'14 TTOHNE Y8 UNITED STATES Patented August 23, 1904.

GOTTLIEB KELLER, OF NEW YORK, N. Y.

TENSION DEVICE FOR WARP-BEAMS.

SPECIFICATION forming part of Letters Patent No. 768,464, dated August 23, 1904.

Application filed October 14, 1903. SerialNo. 176,990. (No model.)

To all whom, it 7%(I/Z/ concern:

Be it known that I, GorTLIEB KELLER, a citi- Zen of the Republic of Switzerland, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Tension Device for Warp-Beams, of which the following is a full, clear, and exact description.

The invention relates to looms; and its object is to provide anew and improved tension device for warp-beams arranged to give a uniform tension to the warp under varying weather conditions to insure the formation of faultless weaves.

The invention consists of novel features and parts and combinations of the same, as will be represented in the accompanying drawings,

forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a planview of the improvement as applied. Fig. 2 is a sectional side elevation of the same on'the line 2 2 of Fig. 1. Fig. 3 is an enlarged cross-section of the same on the line 3 8 of Fig. 2.

The warp A unwinds from the warp-beam B, having its shaft 0 journaled in suitable bearings on the loom-frame D, and on one or on each end of the said shaft issecured a pinion E, in mesh with a gear-wheel F, having its shaft F journaled in suitable bearings formed in abracket D, attached to the loom-frame D. On oneor on both faces of the gear-wheel F are formed annular shoulders F on which bear projections'Gr, held in the members of a fork H, formed on one end of a tension or pressure rod H, extending loosely through a bearing 1, held on the bracket D, as plainly illustrated in Fig. 2.

A spring J is coiled on the tension-rod H and abuts with one end against the bearing I, and the other end of the spring rests on a nut K, screwing on the threaded terminal of the tension-rod H to allow the operator to increase or diminish the tension of the spring J by screwing the nut K up or down on the threaded end of the tension-rod.

of the gear-wheel F in the inverse direction of the arrow 6, so that the pinion E and the warp-beam B are turned in a reverse direction to rewind the warp A on the said beam.

From the foregoing it will be seen that a continuous tension is given to the warp A from the device described, it being understood that when the projections Ghave been carried up by the shoulders F to a point lying in a horizontal plane extending throu h the axis of the wheel F, then a farther pull of the warp A in a forward direction causes the wheel F to turn farther in the direction of the arrow 6, as the projections Gr now glide over the annular shoulders F but as soon as the warp A becomes slack then the wheel F is turned in the reverse direction of the arrow Z) owing scribed the spring J can be set to any desired tension according to the nature of the warp A under treatment.

It is understood that instead of the spring J weights maybe employed connected with the rod H for putting the latter under the desired tension relative to the gear-wheel F, and, if desired, but one projection G and a corresponding annular shoulder F may be used instead of the construction described and shown.

By the arrangement described the unreliable weights heretoforeused for giving the desired tension to the warp. A are entirely dispensed with, and it takes but a very short time on the part of the operator toset the tension-rod H to the desired tension toinsure a proper taking up of the warp on the beam B in case the warp slacks under varying weather conditions or other causes.

It is understood that the gearing shown and described requires but a short return travel of the gear-wheel F to rewind the warp A for quite a distance, it being understood that in some cases such rewinding of the warp is necessary for the distance of several inches. The bearing 1 for the rod H is arranged to allow the rod to readily slide in the bearing, but also to freely swing thereon, so as to compensate for the travel of the projections Gr in the segmental path.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. A tension device for warp-beams, com-- prising a Wheel rotating with the warp-beam and provided with an annular shoulder, and a tension-rod bearing on the said shoulder, and movable bodily with the same, as set forth.

2. A tension device for warp-beams, comprising a wheel rotating with the warp-beam and provided with an annular shoulder, atension-rod, and means on the said tension-rod for engaging the said annular shoulder whereby the tension-rod may move bodily with the shoulder, as set forth.

3. A tension device for warp-beams, comprising a Wheel provided on its face with an annular shoulder, a tension-rod having a projection bearing on the said annular shoulder, and a bearing for the tension-rod to slide in and to swing on, as set forth.

4. A tension device for warp-beams, comprising a wheel formed on its face with an annular shoulder, a gear for connecting the wheclwith the warp-beam, a tension-rod provided with a projection bearing on the said shoulder, a spring pressing the said tensionrod, and a bearing for the tension-rod to slide in and to swing on, as set forth.

5. A tension device for warp-beams, comprising a wheel provided on its opposite faces with annular shoulders facing inwardly toward the axis of the wheel, and a tension device having a bifurcated end embracing the outer edge of said wheel and provided with projections exerting an outward pressure against said annular shoulders.

6. The combination in a tension device for warp-beams, of a wheel, a tension device engaged with the wheel and having a limited movement bodily with the wheel and a readjusting movement independently of the wheel whereby the tension device may move bodily with the wheel to a limited extent and may then readjust, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

(iO'lTLIEB KELLER.

Vitnesses:

'lnno. G. Hos'rnn, Evmmm) B. l\'lA]-KSITALL. 

